A ground engaging vehicle including a frame, an engine connected to the frame, a controller, and a hydraulic system powered by the engine. The hydraulic system includes a plurality of actuators, a plurality of valves, and at least one sensor. The plurality of valves include a first valve associated with a corresponding one of the plurality of actuators. Each of the plurality of valves is operatively connected to the controller. The at least one sensor is adapted to send a signal to the controller indicating a hydraulic connectivity through the first valve. The controller is adapted to open the first valve allowing hydraulic fluid to pressurize a first actuator until the first actuator is driven to an end of its stroke. The controller is further adapted to close the valve and send an increasing current to the valve. The at least one sensor detects a hydraulic connectivity through the valve and the controller is adapted to establish a threshold current value as the value of the increasing current when the at least one sensor detects the hydraulic connectivity through the valve.